The Private Reserve line from Barrell Craft Spirits is possibly the most extensive and detailed blending program in American spirits. The team at Barrell has created upwards of 100 different blended whiskeys in what amount to little more than single-barrel quantities, each composed of a unique proportion of aged whiskeys and finished in different vessel types. The CH48 release sees one of the most unique aging regimes in craft spirits production. Based on an 18-year-old Kentucky whiskey, it was aged in used Calvados barrels to lend a thoroughly beguiling and charming side to the robustness of the old whiskey.